SOLID-STATE CONFORMATION OF THE ANOMERIC EFFECT IN 2-PHOSPHORYL-SUBSTITUTED, 2-THIOPHOSPHORYL-SUBSTITUTED AND 2-SELENOPHOSPHORYL-SUBSTITUTED 1,3-DITHIOLANES

Citation
M. Mikolajczyk et al., SOLID-STATE CONFORMATION OF THE ANOMERIC EFFECT IN 2-PHOSPHORYL-SUBSTITUTED, 2-THIOPHOSPHORYL-SUBSTITUTED AND 2-SELENOPHOSPHORYL-SUBSTITUTED 1,3-DITHIOLANES, Journal of organometallic chemistry, 536(1-2), 1997, pp. 355-360
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
ISSN journal
0022328X
Volume
536
Issue
1-2
Year of publication
1997
Pages
355 - 360
Database
ISI
SICI code
0022-328X(1997)536:1-2<355:SCOTAE>2.0.ZU;2-Y
Abstract
The crystal structure of the title compounds 1-3 have been determined by X-ray diffraction studies. The 1,3-dithiolane ring in all three com pounds adopts a twist conformation with the Ph2P=X group being pseudoa xial. The structural data suggest that the n(s) --> sigma(C-P) negati ve hyperconjugation is responsible for the anomeric effect in 1,3-dith iolanes. (C) 1997 Published by Elsevier Science S.A.